Wire-drawing machine.



E. ROLSHOVEN. WIRE DRAWING MAGHINE. APPLICATION FILED FEB. 1, 1910.

` Patented Nov. 21, 1911.

3 SHEETS-SHEET 1.

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WIRE DRAWING MACHINE.

APPLICATION FILED 1113.1, 1910.

Patented Nov. 21, 1911.

3 SHEETS-SHEET 2.

E. ROLSHOVEN.

WIRE DRAWING MACHINE. APPLICATION :FILED PBB.1, 1910.

1,009,344.- Patented N0v.21,19111. 3 sHBETs-sHEET a.

Mn/asses (ga/waal olsfaoven,

UNITED sTATEs PATENT oFFIcE.

EDUARD ROLSHOVEN, OF ALTENA, GERMANY.

WIRE-DRAWING MAcHrNE.

To all whom it may concer/n:

Be it known that I, EDUARD.RoLsHovE1\ I, a subject of the. German Emperor, and reisl- .dent of Altena, in the Province of Westphalia, Kingdom of Prussia, German Empire, have invented certain new and usefuln Improvements in Wire-Drawing Machines, of which the following is a specification.

My invention relates to wus-drawing machines, and has for its object to provide a machine of this character which will be` capable of a high speed, very durable, and compact in arrangement.

To this end, my invention vconsists ofcertain features of construction, andcomb1I 1a-.

tions of parts, that will be fully described hereinafter, and particularly pointed out in the claims. Reference is to be had to the accompanying drawings, in which-V v Figure 1 is a side elevation of my improved machine, with parts insection; Fig. 2 is a plan view with parts broken away; Fig. 3 is a partialplan View showing a traverse mechanism different from the one illustrated by Fig. 2; Fig. 4 is a side elevation of the' upper part of the machine, drawn upon an enlarged scale, with parts in section on line A-B of Fig. 2; Figs. 5 and 6 are cross-sections on lines C-D and E-F of Fig. 2 respectively; Fig. 7 is a partialelfd elevation of themachine, looking from the f right-hand end of Fig. 2; Fig. 8 is a longitudinal section of the traverse mechanism shown in Fig. 3`; Fig. 9 is a detail elevation naled the shafts 2 'ofthe drawing drums3 and of the feed drum 3. As shown in Fig.

2, a|`|shaped partition 1a divides the frame into two sections, each of which contains a completeY wire-drawing vmechanism. Inasmuch as these two mechanisms are identical (except as' to position of their parts), only one of them has been illustrated in full, the other, occupying `the upper andthe righthand portions of'Fig. 2, being indicated by some of its parts only. The two mechanisms Specification of Iietters Patent. v .Patented NV. l21, 1911. Application led February1, 1910. Serial No. 541,383. i

are entirely independent each having its own 'driving power, such asan electromotor 4 which by means of gearing 5, 6 drives the shaft 2 of the irst drawing drum 3 of the nism, such as sprocket wheels 7 and 8, and

ing drawing `drums 3 and the wfeed drums 3. The transmission should be such that each drum 3 rotates ata higher rate ofspeed than the preceding one, and that the ratio of such speed-increase is 0constant In other words, ywiththe particular drive shown, the ratio of the diameters of directly connected wheels 7, 8 should be the same 4for each pair. In order to insure an easy and, noiseless running of the it inan oil-bath, contained in a tank 10 provided witha cover and completely closed. The drawing mechanism roper is also immersed in avliquid, contamed in atank 11 provided with a cover, the drawing drums' 3 dipping into said liquid to about one-third of their diameter, as indicated by the upper dotted line in Fig. 41. With the drums 3 are combined.az."suitable number of draw-plates or dies 16 (Fig. 12) removably carried by holders 12 which are fastened on the frame 1 within the tank 11 so as to be immersed in the liquid, the hole in each die being at the same level with the lowermost part of the drawing drums. The wire is thus led through the machine in a horizontal line at the lengthening of the 4wire due to the progressive reduction of its diameter. The drums 3 rotate at a high speed in the direction indicated by arrows in Fig. 1, and in this manner the liquid is brought with'great force against the'drawing dies, thus cooling them and washing out the die-openings so as t0 prevent them from becoming smaller, this being very important on account Aof the high speed of the machine.

wire after itspassage through the last die with a nipple 15 and cover 15a, screwed-together and provided with a washer 15b; the liquid adhering to the wire is thusretained on the outside of the cover 15a and drops back into the tank 11, the wire being thus dried before it reaches the Winding mechamism. described hereinafter.

series, while suitable transmission mecha` chains 9, is provided to operate the. remaintransmission mechanism, I prefer to arrange a speed'which increases to compensate for i Within the tank 11, and in the path of the 16,V is located a small box 14 (Figs. 1 and 10) In order that access may b e had to the dies and drawing drums when desired, the tank 11 is movable vertically along guides 17, the position of the tank being controlled by levers 18 fulcrumed at 18a and carrying rolls 18b which engage the bottom of the tank (see Fig. 1). One of the levers 18 is connected rigidly with an operating lever.

19, while a rod 19a and an arm 19h, rigidly connected with the other lever 18, insure a parallel motion of lboth levers. Fig. 1 also indicates that a plurality of drawing mechanisms of the character described may be superposed upon the same frame 1; these mechanisms being identical, only the upper one has been shown in detail, the two lower ones being simply indicated by dotted lines by the nipple 15, washer 15b, die 16 and cover 15a. The nished wire is wound on a spool 20 mounted on the shaft 21. To enable the wire to be spooled evenly, a suit- .able traverse mechanism Jis provided, two

forms of which are shown `in the drawings.

According to the construction represented in Figs. 2, 4 and 5, the wire is guided by pins 22 projected from a holder 23 which,

by means of a screw 25, may be adjusted lengthwise of a sliding rod 24. After adjustment, the holder is fastened, as by means of a set-screw. The rod 24 and the pins 22 are reciprocated lengthwise of the spool20 by means of a"lever 26 one end of which ha's a loose connection with the rod 24 while its other end has a'pin fittedV into a longi# tudinal slot of another lever 27 fulcrumed at 27a and swung alternatel in opposite directions by means of cam ri s 29, 30 embracing a pin 28 on the lever 27. The ribs 29, 30A are secured to a rotary drum 32 mounted rigidly on a .shaft 31.which is rotated at a rate of speed constant with reference to that of the spool shaft 21. That is tosay, the shafts 21 and 31 are connected to preserve the same relative speeds, as by means of a shaft 33 and worm gearing 33a.

The longitudinal slot of the lever 27 is provided for the purpose of allowingd theV lever 26 to be adjustedso as to vary its throw and thereby the course or st-roke of the rod u24 so that spools 2O of'different Widths may be employed, the le'ver 26 being set accordin ly every time a4 spool of a different width 1s substituted. Insomuch as the last drum 3 (at the right in Fig. 1) draws the wire through the cleaning cover 15at and the lastndie 16 and feeds it to the spool 20, the wire is not subjected to any longitudinal strain while being spooled.e

In view of the fact that the diameteropf the coil of wire on the spool 2O increases progressively, while the, linear speed of the wire as it is fed to said spool is constant,

vextending around the cone drums 41, 42,

one of which is mounted' rigidly on the shaft 21 of the spool 20 and the other on the shaft 2 of the feed drum 3. A weight 44 connected with the rod 39 by the chain 38 or the like, pulls it in such a direction as to press the roller 34 upward againstthe spool 20. The rod 39 is mounted to move parallel swith the axes of the drums'41, 42, and as shown said rod forms part of a carriage provided with rolls 45 adapted to travel on stationary guide rods 46 parallel with the shaft 21 (Figs. 2 and 9). ASince the drums 41, 42 taper in opposite directions it follows' that while the length and tension of the driv^ ing belt remain the same, the speed ratio vwill vary as the belt is shifted transversely Therefore, with the drum 42 having a constant number' of revolutions, the drum 41 and the spool 2O will be rotated at a gradu ally .reduced speed as the wire accumulating on the spool causes the rock shaft 36 to swingand the carriage with the rod 39 and belt-guiding fork 40 to be shifted. Since,

as above described, the traverse rod 24 is operated by mechanism which (through the shafts 31 and 33) is governed by the shaft 21 of the spool 20, it follows that the speed of the traverse mechanism will' be altered in the same ratio as that of said spool, thus insurin a proper tiining of the traverse mechanlsm, that is, an even winding of the wire -on the spool, notwithstanding the varyling speed of such spool.

j The following stop mechanism can be pros 49. `Preferably the lever is slotted to provide for a longitudinal adjustment of the stop. A hook 52 at the end of the lever 49 rormally holds the arm 50 of the motor controller 51 in the position in which the current is switched on. -A yspring or other device (not shown) will throw the controller, as soon as it is released from the hook 52, in such a manner as to break the circuit and stop the motor. When a certain amount of wire has been coiled on the spool, the arm 47 will, by engaging the stop 48,

. swing the lever 49 so as to release the switch matlcally either after the Vspool 20 has received wire to its full capacity, or only a predetermined fraction of such capacity.

Ball bearings with cones and cups 53 (Fig. 11) may be provided for parts of the machine, and particularly for the several shafts.

The dies 16 being removable from their holders 12, this facilitates the threading of the wire through them. (Fig. 12.)

The mechanlsm is entirely inclosed in a casing `54 so that the operation is not visible. The lower portion 56 of the frame constitutes a cupboard divided into compartments 55 to receive spools, wire, tools, etc. These compartments may be provided with doors.

As hereinbefore referred to, Figs. 3 and 8 represent a slightly different mechanism -for actuating the traverse device eating rod 24). The parts 20, 21, 2 4, 26, 27, 39a, 41, 42, 45 and o46 shown in these views are practically of the same 'construction asV described above. The

belt 43 is crossed, and the position of the parts is lslightly altered, without however affecting their operation. The pin 28 of the lever"27 isengaged and moved by eccentric guides57 on a worm wheel 58 driven from the shaft 21 by means of a worm 58a and a string or belt 59, or any other suitable Aconnection. This causes the lever 27 to be reciprocated in the same manner as hereinbefore' described, always in roper time with reference to the rotation ci) the spool 20.

By reference to Fig. 2 it will be seen that Y a very compact arrangement is obtained by locating the two mechanisms in the L shaped compartments which are formed in the frame 10 by thel- Fshaped partition 10a. The motor is placed in the' short end member of the L, and the driving mechanism in the lon'g side member. The two L compartments are placed reversely, the free end of each longitudinal member fitting into the corner. at the junction of the members of the other compartment. Together, the two compartrnents have a rectangular outline, so

that a very perfect utilization of the avail- "able space is obtained..

Various modications may`be'made without departing from the nature ,of my invention as defined in the appended claims.

l claim as my invention:

the rotary4 the recipro- 1. A wire-drawing machine provided withl dies and drawing drums, a spool on which the finished wire is adapted to be wound, a device for drying 'the wire on its passage from the last drawing drum to said spool, and a feeding device engaging the wire b'etween the drying device andthe spool.

2. A wire-drawing machine provided with dies and drawing drums, a tank in which said dies and drums are located, a drying device through which the wire is adapted to pass after leaving the last drawing drum, and a box located within the` tank on the delivery side of the drying device, and means for leading the wire upward within said boX to a point above the normal level of the liquid in the tank. y

31 A Wire-drawing machine comprising lmechanism for drawing the wire, an eX- changeable spool for receiving the drawn Wire, ao uide for leading the wirevto the spoo1, a slide to which said guide is secured, arranged to reciprocate lengthwise of the spool, a'lever operatively connected with the slide, a second' lever, means for oscillating the second lever, and an adjustable operative connection between the two levers to allow the throw of the first-named lever to be varied while the throw of the second lever remains constant.

4. A wire-drawing machine comprising mechanism for drawing the wire, a spool for receiving the drawn wire, traverse mechanism for distributing the wire evenly on the spool, mechanism for driving said spool at varying rates of speed, a movable device arranged to engage the coil of wire on the spool and having an operative connection Vwith 'said driving mechanism to vary the spools rate of speed as the coil of wire increases in diameter, and an operative con` nection between the sald spool and the trav- .erse mechanism so that the speed of the latter lwill vary in `the same ratio as that of i the spool.

5.`A wire-drawing machine comprising mechanism for drawing the wire, a spool for receiving the drawn wire, traverse mechanism for distributing the wire evenly on the spool, oppositely tapered i pulleys one of which rotates with the spool, driving mechanism connected with the other pulley, 'a belt connecting the two pulleys and movable lengthwise thereof, a belt-shifting carriage movable lengthwise of said pulleys, a movable device arranged to engage the coil of wire on the spool and having an operative connection -with the said carriage to vary the spools rate of speed as the coil of wire increases in diameter, and an operative connection between "the spool and the traverse mechanism so that the speed of the latter will varyin the same ratio as that of the spool. .y 6. A wire-drawingV machine comprising mechanism for drawing the Wire, a spool for receiving the drawn wire, a movable device arranged Lto engage the' coil of wire on the spool, and means, controlled by said device, for varying the rotary speed of the spool as the coil ofwire increases in diameter.

7. A wire-drawing machine comprising mechanism for drawing the wire, a spool for receiving the drawn wire, oppositely tapered pulleys one of which rotates with the spool, driving mechanism connected with the other pulley, a belt connecting the two pulleys and movable lengthwise thereof, a belt-shifter movable lengthwise of the pulleys, a movable device arranged to engage the coil of wire on the spool, and an operative connection from said device to the belt-shifter to vary the spools rotary Speed as the coil of wire increases in diameter.

8. A Wire-drawing machine comprising mechanism for drawing the wire, a spool for receiving the drawn Wire, a roller adapted to engage the wire coiled on said spool, a rockin arm carrying said roller, another arm he d to move in unison with said rocking arm, a lever provided with a. stop adapted to be engaged by the last-named arm, and stop mechanism controlled by said lever.

EDUARD ROLSHOVEN. [n s] -Witnesses: 4

O'rro- KNIG, CHAS. J. WRIGHT. y 

